Plastic bottle



FIG. 1 is a top plan view of the plastic bottle of our design;

FIG. 2 is a front elevation of the plastic bottle, the rear elevation is the same except for the conventional screw threading on the neck;

FIG. 3 is a right side elevation of the plastic bottle, the left side elevation is the same except for the conventional screw threading on the neck; and,

FIG. 4 is a bottom plan view of the plastic bottle. 

The ornamental design for a plastic bottle, as shown and described. 